package com.zzyl.nursing.service.impl;

import java.time.LocalDateTime;
import java.util.Arrays;
import java.util.List;

import cn.hutool.core.date.LocalDateTimeUtil;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.zzyl.common.utils.DateUtils;
import com.zzyl.common.utils.UserThreadLocal;
import com.zzyl.nursing.vo.TimeCountVo;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.zzyl.nursing.mapper.ReservationMapper;
import com.zzyl.nursing.domain.Reservation;
import com.zzyl.nursing.service.IReservationService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

/**
 * 预约信息Service业务层处理
 * 
 * @author x2m
 * @date 2025-10-31
 */
@Service
public class ReservationServiceImpl extends ServiceImpl<ReservationMapper, Reservation> implements IReservationService
{
    @Autowired
    private ReservationMapper reservationMapper;

    /**
     * 查询预约信息
     * 
     * @param id 预约信息主键
     * @return 预约信息
     */
    @Override
    public Reservation selectReservationById(Long id)
    {
        return getById(id);
    }

    /**
     * 查询预约信息列表
     * 
     * @param reservation 预约信息
     * @return 预约信息
     */
    @Override
    public List<Reservation> selectReservationList(Reservation reservation)
    {
        return reservationMapper.selectReservationList(reservation);
    }

    /**
     * 新增预约信息
     * 
     * @param reservation 预约信息
     * @return 结果
     */
    @Override
    public int insertReservation(Reservation reservation)
    {
        return save(reservation) ? 1 : 0;
    }

    /**
     * 修改预约信息
     * 
     * @param reservation 预约信息
     * @return 结果
     */
    @Override
    public int updateReservation(Reservation reservation)
    {
        return updateById(reservation) ? 1 : 0;
    }

    /**
     * 批量删除预约信息
     * 
     * @param ids 需要删除的预约信息主键
     * @return 结果
     */
    @Override
    public int deleteReservationByIds(Long[] ids)
    {
        return removeByIds(Arrays.asList(ids)) ? 1 : 0;
    }

    /**
     * 删除预约信息信息
     * 
     * @param id 预约信息主键
     * @return 结果
     */
    @Override
    public int deleteReservationById(Long id)
    {
        return removeById(id) ? 1 : 0;
    }

    /**
     * 查询取消预约数量
     *
     * @param userId
     * @return 取消预约数量
     */
    @Override
    public int getCancelledReservationCount(Long userId) {

        long time = System.currentTimeMillis();
        LocalDateTime ldt = LocalDateTimeUtil.of(time);
        LocalDateTime startTime = ldt.toLocalDate().atStartOfDay();
        LocalDateTime endTime = startTime.plusDays(1);

        return reservationMapper.getCancelledReservationCount(userId, startTime, endTime);
    }

    /**
     * 查询每个时间段剩余预约次数
     *
     * @return
     */
    @Override
    public List<TimeCountVo> countByTime(Long time) {

        LocalDateTime ldt = LocalDateTimeUtil.of(time);
        LocalDateTime startTime = ldt.toLocalDate().atStartOfDay();
        LocalDateTime endTime = startTime.plusDays(1);
        
        List<TimeCountVo> timeCountVoList = reservationMapper.getCountByTime(startTime, endTime);
        return timeCountVoList != null ? timeCountVoList : List.of();
    }

    /**
     * 取消预约
     *
     * @param id
     * @return
     */
    @Override
    public int cancel(Long id) {

        Long userId = UserThreadLocal.getUserId();
        int flag = reservationMapper.updateByIdCancel(id, userId);

        return flag == 1 ? 1 : 0;
    }

    /**
     * 更新预约状态
     *
     */
    @Override
    public void updateStatus() {
        List<Reservation> list = list(Wrappers.<Reservation>lambdaQuery()
                .eq(Reservation::getStatus, 0)
                .lt(Reservation::getTime, LocalDateTime.now().minusMinutes(30)));

        list.forEach(item -> {
            item.setStatus(3);
        });

        updateBatchById(list);
    }
}
